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Latest Plant anatomy Stories

2012-02-06 11:12:10

Plants leaves are sealed with a gas-tight wax layer to prevent water loss. Plants breathe through microscopic pores called stomata (Greek for mouths) on the surfaces of leaves. Over 40% of the carbon dioxide, CO2, in the atmosphere passes through stomata each year, as well a water volume twice that of the whole atmosphere. As the key conduits for CO2 uptake and water evaporation, stomata are critical for both our climate and plant productivity. Thus, not surprisingly, the total number and...

2011-12-20 22:43:43

Plant roots are fascinating plant organs — they not only anchor the plant, but are also the world's most efficient mining companies. Roots live in darkness and direct the activities of the other organs, as well as interact with the surrounding environment. Charles Darwin posited in The Power of Movement of Plants that the root system acts as a plant's brain. Due to the difficulty of accessing root tissue in intact live plants, research of these hidden parts has always lagged behind...

2011-12-13 22:27:03

Researchers discover the protein that transports sucrose to the plant´s vascular pathways Plants must supply their various tissues with the carbohydrates they produce through photosynthesis in the leaves. However, they do not have a muscular pump like the human heart to help transport this vital fuel. Instead, they use pump proteins in their cell membranes for this purpose. Together with colleagues from the Carnegie Institution for Science in California, Alisdair Fernie from the Max...

2011-12-12 22:28:15

Multicellular organisms must have a means for cells to communicate with one another. Past research has shown that plants possess the ability to directly transfer materials between adjacent cells, through holes in their cell walls called plasmodesmata (PD). Now, a study published by Cell Press in the December issue of the journal Developmental Cell reveals one way to control the size of these PD channels, to prevent or allow the passage of important signals between cells, during plant...

2011-11-04 23:04:27

The discovery of a new gene is helping researchers at Michigan State University envision more-efficient molecular factories of the future. A team of researchers, led by Katherine Osteryoung, MSU plant biologist, announced the discovery of Clumped Chloroplasts — a new class of proteins — in the current issue of the Proceedings of the National Academy of Sciences. CLMP1 plays a key role in helping chloroplasts, which carry out the life-sustaining process of photosynthesis,...

2011-09-13 12:18:12

A new technique developed by researchers at RIKEN has clarified the location and dynamics of specific metabolites in a single cell of the alga Chara australis. The findings reveal that these metabolites are regulated and fluctuate under stress conditions, providing insight into previously-unknown functions of the vacuole in cellular processes. Metabolites, the intermediates and products of chemical reactions that sustain all living organisms, play a central role in cellular processes...

2011-09-08 20:47:42

How plants space out the pores through which they breathe The way in which plants space out the pores through which they breathe depends on keeping a protein active during stem cell growth, according to John Innes Centre scientists. Plant pores, called stomata, are essential for life. When they evolved about 400 million years ago, they helped plants conquer the land. Plants absorb carbon dioxide through stomata and release oxygen and water vapour as part of the Earth's carbon and water...

2011-08-25 21:34:14

Study finds KN1 trafficking through tiny channels called plasmodesmata cannot occur without chaperonins Like all living things, plants depend for their growth and sustenance on elaborate signaling networks to maintain stem cells, cells that have an almost magical regenerative capacity. The signals sent through these networks convey an incredible diversity of instructions, which make it possible for plants to follow genetic and cellular programs regulating growth, shape, and energy...


Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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